| 摘要 |
<p>A polymeric rigid container for foods and beverages comprises: (a) a polymeric substrate shaped to define a container for a food or a beverage; (b) a first coating layer adhered to at least one surface of the polymeric substrate for retarding the transmission of oxygen and carbon dioxide through the substrate and optionally (c) a second coating layer adhered to the first coating layer which comprises a curable composition comprising a binder component in an organic solvent. The first coating layer comprises an organic binder and from 10% up to less than 90% by weight, based on the dry weight of the first coating layer, of an inorganic laminar mineral selected from montmorillonite, laponite, organo- montmorillonite and mixtures thereof. The laminar mineral comprises platelets which are oriented within the first coating layer in a generally parallel, three-dimensional and overlapping spaced relationship, and the organic binder is selected from water-soluble or water dispersible organic resins and mixtures thereof</p> |
